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Gwynne's Mining Bee

Andrena bicolor

Gwynne's Mining Bee

A close up of Andrena bicolor Gwynne's mining bee on the ground

Andrena bicolor f20130402

by Aiwok. CC BY-SA 4.0

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The mining bees are a large group of European bees which are solitary meaning they build nests and care for broods alone. Andrena bicolor, known more widely as Gwynne's Mining Bee, is a small mining bee that's present across many parts of the world, including Europe, America, Central Asia and Russia. These bees are polyectic, which is a fancy term for a generalist pollinator, and that they enjoy the nectar of many flowers! They thrive in woodland and open woodland habitats.
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These are hairy bees capable of pollinating many flowers a day.


Adults: They usually possess lots of hair, showing similarities to a carder bee. They're small (about 1cm), and the males smaller again. The thorax hairs are golden-brown, but the abdomen a shiny black-brown with yellow and thin, faint, stripes. Sound identification is hard to achieve with mining bees because of all of their similarities. Larvae and Eggs: They reside beneath the ground where females have dug individual chambers. They are sealed in with enough pollen and nectar to keep them going until they have developed into mature bees.











Europe, the USA and Central Asia.

Biological treatment

It's not recommended to treat gardens with Adrena bees.

Chemical treatment

These bees are top pollinators; ideally, they shouldn't be removed.


These bees will pollinate many types of woodland plants!


Tussilago spp.

Creeping Buttercup

Ranunculus repens


Taraxacum officinale

Common bluebell

English Bluebell

Hyacinthoides non-scripta

Some blue Hyacinthoides hispanica flowers

Spanish Bluebell

Hyacinthoides hispanica

A white flower on a Billardiera cymosa plant

Sweet Apple-Berry

Billardiera cymosa

White Clover

Trifolium repens


Crocus spp.


Crataegus spp.

Goat Willow

Salix caprea

Wild Garlic

Allium ursinum

Common Knapweed

Centaurea nigra

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